Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

Evaluation of Running Safety for Depressed Center Flat Car of 3-axle Bogie

3-축 대차 곡형평판차량의 주행안전성 평가

  • Ham, Young-Sam (Vehicle and Track Research Department, Korea Railroad Research Institute) ;
  • Seo, Jung-Won (Vehicle and Track Research Department, Korea Railroad Research Institute) ;
  • Kwon, Seok-Jin (Vehicle and Track Research Department, Korea Railroad Research Institute) ;
  • Lee, Dong-Hyung (Vehicle and Track Research Department, Korea Railroad Research Institute)
  • 함영삼 (한국철도기술연구원 차륜궤도연구실) ;
  • 서정원 (한국철도기술연구원 차륜궤도연구실) ;
  • 권석진 (한국철도기술연구원 차륜궤도연구실) ;
  • 이동형 (한국철도기술연구원 차륜궤도연구실)
  • Received : 2011.03.19
  • Accepted : 2011.04.01
  • Published : 2011.05.01
Download PDF
⟨ Previous Next ⟩

Abstract

For the safety of railway, it should be evaluated for the running safety by measuring the derailment coefficient. Although railway has run the fixed and maintained rail, some of railway is derailed. This report shows the results that performed the static load test, main line running test on the basis of the derailment theory and experience. It is executed main line test into more than 90km/h for estimating the curving performance and running safety of depressed center flat car of 3-axle bogie. As the test results, could confirm the curving performance and running safety of depressed center fiat car of 3-axle bogie from the results of the wheel unloading, lateral force, derailment coefficient etc. Derailment coefficient was less than 0.6, and lateral force allowance limit and wheel load reduction ratio were enough safe.

Keywords

References

  1. Ham, Y. S., Lee, D. H., Kwon, S. J., You, W. H. and Oh, T. Y., "Continuous Measurement of Interaction Forces between Wheel and Rail," International Journal of Precision Engineering and Manufacturing, Vol. 10, No. 1, pp. 35-39, 2009. https://doi.org/10.1007/s12541-009-0006-3
  2. International Union of Railways, "Testing and approval of railway vehicles from the point of view of their dynamic behaviour - Safety - Track fatigue - Running behaviour, 4th Edition," UIC CODE 518, 2009.
  3. Ham, Y. S. and Oh, T. Y., "Finite element analysis of wheel-set for derailment coefficient measurement that have plane plate shape," Proceedings of KSPE Autumn Conference, pp. 119-122, 2004.
  4. Ham, Y. S., Lee, D. H., Kwon, S. J. and Seo, J. W., "The experiment study about a correlation between the derailment coefficient of the railway vehicle and the track alignment," Journal of the Korean Society for Precision Engineering, Vol. 27, No. 8, pp. 7-12, 2010.
  5. Railroad Safety Law, "Rule about safety level of rolling stocks," Ministry of Land, Transport and Maritime Affairs, Notification No. 35, 2008.